Question

A bullet fired at an angle of 15 degree with the horizontal hits the ground 3 km away. Can we hita
distance of 7 km by adjusting the angle of projection?

Answer 1

Answer:

Answer

Open in answr app

Open_in_app

Range R=u

2

Sin2θ/g=6000meter

so u

2

=120000m/s so u=346.4m/s

Note, we used Sin2θ=Sin30

0

=0.5

Now we know that the maximum value of range is given as R

max

=u

2

/g=120000/10=12000meter=12Km

So its possible to hit the target at 10Km distance because its less than maximum range.